We've covered private secondary markets a lot recently, here at IR magazine, largely because the action in high-profile companies (such as Facebook and Twitter) has been significant. And, the markets themselves have been becoming more recognizable to the public.

So, are the likes of SecondMarket and SharesPost changing everything? Watch the video below to see why Silbert declares, 'Over the past 10 years, the IPO market has been dying a slow, slow death.'